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Using ssl module over custom sockets

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  Using ssl module over custom sockets jbauer.usenet@gmail.com - 2015-06-08 00:22 -0700
    Re: Using ssl module over custom sockets Johannes Bauer <dfnsonfsduifb@gmx.de> - 2015-06-08 17:25 +0200

#92330 — Using ssl module over custom sockets

Hi group,

is it possible to use the ssl module using a custom transport? It appears to me as if currently the relationship between ssl.SSLSocket() and socket.socket() is pretty entangled.

Suppose I do have some kind of reliable transport (let's say RS232) and a connection that I have wrapped in a class. The things I can provide are send/recv methods, but nothing specific to UNIX sockets (getsockopt, etc). Could I use the Python ssl module to perform a SSL connection over such a line?

Something that I could always use as a workaround would be to open up a listening port locally in one thread and connection to that local port in a different thread, then forward packets. But that's pretty ugly and I'd like to avoid it.

Any hints appreciated,
Best regards,
Johannes

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#92339

On 08.06.2015 09:22, jbauer.usenet@gmail.com wrote:

> Something that I could always use as a workaround would be to open up a listening port locally in one thread and connection to that local port in a different thread, then forward packets. But that's pretty ugly and I'd like to avoid it.

Didn't actually have to do that. My solution now is to use
socket.socketpair() and forward traffic from there. Works reasonably
well and isn't racy (unlike opening up a local TCP/IP port would be).

So I think this solves the problem (although it'd still be cool to have
an alternative way of specifying a send/recv function IMHO).

Cheers,
Johannes


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